Green Roof Care
Sedum Cutting by the Pound
Coverage
| Weeks to reach 90% coverage | Required pounds per sq foot |
| 10 | 1/8 |
| 18 | 1/16 |
| 36 | 1/32 |
Weeks to 90% coverage will vary with the variety's growth rate
Handling Instructions
Immediately upon arrival, remove sedums from the plastic bags and loosen the boxes to allow more air flow.
Put boxes in a cool, dark place. If temperature is above 55 degrees, spray plants with water. Plants should not be soaking wet
or submerged in water.
Plant within 48 hours if possible.
Spacing Information
Spacing between plants for 4" pot, multiply square footage by:
Example: 100 sq ft area multiplied by 9 would require 900 plants that would be 4" on center
| 4" | 6" | 8" | 9" | 12" | 15" | 18" | 24" | 30" | 36" |
| 9.00 | 4.00 | 2.20 | 1.80 | 1.00 | 0.64 | 0.44 | 0.03 | 0.16 | 0.11 |
Maintenance
General recommendations are for four to six inches of growing medium; requirements will depend on microclimate.
Watering Recommendations
One inch of water every three weeks including rainfall for:
- Buchloe dactyloides
- Sedum
- Sempervivum
One inch of water every two weeks, including rainfall for:
- Achillea
- Arctostaphyllos
- Delosperma
- Dianthus
- Euphorbia myrsinites
- Herniaria glabra
- Iris pumila
- Koeleria glauca
- Lewisia
- Potentilla neumaniana 'Nana'
- Saxifrage
- Schizachyrium scoparium
One inch of water every week, including rainfall for:
- Armeria maritima
- Carex pansa
- Cotula
- Festuca glauca
- Fragaria chiloensis
- Geranium sanguineum
- Hemerocallis 'Stella de Oro'
- Koeleria
- Ophiopogon japonicus 'Nanus'
- Stipa tenuissima
- Trifolium
- Thymus
Fertilizing Recommendations
First Year until established
Slow release fertilizer should be applied at the time of planting. The correct amount of fertilizer is very important.
Over fertilization will damage the plants and the amount will depend on the soil depth, plant spacing, and season.
We can assist in making recommendations.
After the first year
Many Green Roofs will not need to be fertilized after they are established. This will need to be decided on a
case-by-case basis. We can assist in making recommendations.
Weeding
First Year until established
Green Roofs should be checked for weeds once every two weeks from April thru November. From
December to March, check for weeds once every four weeks. Weeds should be manually pulled if possible.
Herbicides may damage the plants and should only be used after careful site analysis.
After the first year
Green Roofs should be checked for weeds once every two months until complete coverage is reached.
After that, check for weeds twice per year. Weeds should be manually pulled if possible. Herbicides may
damage the plants and should only be used after careful site analysis.
Sedum Growth Rates
| Slow | Medium | Fast |
| Sedum album 'Murale' | Sedum divergens | Sedum acre' Aureum' |
| Sedum 'Button' | Sedum forsterianum | Sedum acre 'Gold Moss' |
| Sedum das. 'Major' | Sedum 'Gold Carpet' | Sedum album |
| Sedum hispanicum | Sedum 'Immergrunchen' | Sedum album 'Baby Tears' |
| Sedum spath. 'Cape Blanco' | Sedum kamtschaticum 'Variegatum' | Sedum album Coral Carpet' |
| Sedum spath. 'Carnea' | Sedum lydium | Sedum rupestre 'Angelina' |
| Sedum stoloniferum | Sedum oregonum | |
| Sedum pach. 'White Diamond' | ||
| Sedum platycladus | ||
| Sedum reflexum | ||
| Sedum repestre | ||
| Sedum sexangular | ||
| Sedum sieboldii | ||
| Sedum spurium - all varieties | ||
| Sedum 'Weihenstephaner Gold' |